Steam-boiler.



No. 718,836. PATENTED JAN. 20, 1903.

. E. I. HANNAM.

' STEAM BOILER.

APPLICATION FILED JULY 28, 1902.

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UNirnn STATES PATENT OFFICE.

EDWARD THOMAS HANNAM, OF CINCINNATI, OHIO.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 718,836, dated January20, 1903. Application filed July 28, 1902. Serial No. 117,342- (Nomodel.)

To all whom it may concern.-

Be it known that I, EDWARD THOMAS HAN- NAM, a citizen of the UnitedStates, residing at Cincinnati, in the county of Hamilton and State ofOhio, have invented certain new and useful Improvements inSteam-Boilers, of which the following is a specification.

The object of my invention is to provide a boiler in which the enteringWater will be purified without injury or damage to the boiler.Heretofore pans have been placed in boilers to form, in combination withthe walls of the boilers,purifying-receptacles into which the water isfirst fed upon entering the boiler. By the action of the heat, steam,&c., inthe boiler impurities are deposited in their receptacles, whencethey are removed by a blow-off. The action of theseimpurities upon thesurfaces in which they come in contact is corrosive, so that the pan andthe portions of the walls of the boiler used to form thepurifying-receptacles are in a short time destroyed and must bereplaced. Thus While protecting some parts of the boiler this form ofpurifier, in effect, concentrates the impurlties upon a small area ofboiler-surface, necessitating frequent renewals and reconstruc tions ofthe boiler. The principal object of my invention is to prevent thisdestruction of any portion of the boiler. A further object is to furnisha means for accomplishing this result which may readily be applied toany boiler or removed and renewed when desired without affecting theboiler itself. In order to have the purifier perform its functions assuch, it is necessary that it be capable of containing a considerablequantity of water relatively to the total amount of water in the boiler.To this end the purifier is made in sections adapted to pass through themanhole of the boiler and be assembled and mounted afterward.

My invention consists in the combination and arrangement of partshereinafter described and claimed.

In the drawings, Figure 1 is a side elevation, partly in section, of ahorizontal tubular boiler embodying my invention; Fig. 2, a section online 2 2 of Fig. 1; Fig. 3, a top plan view of my purifying-receptacle;Fig. 4, a side elevation of a horizontal water tube boiler equipped withmy invention; and Fig. 5, an end View, partly in section, of a verticalWater-tube boiler also equipped with my invention.

Reference-letter A denotes a boiler; B, a purifier; G, a feed-pipe, andD a blow-off.

The boiler A may be of any of the usual constructions. It is providedwith hangers a, upon which the purifier B is supported,

preferably about half in and half out of the water, as shown. made ofplates provided with flanges b for securing them together. By making'thepurifier in sections I am enabled to take it into the boiler through theusual manhole and set it up inside, or vice versa, so that the purifiermay readily be placed in or removed from any boiler. The inlet-pipe Oconducts the water into the shallower part of the purifier anddischarges it toward the deeper part, thus insuring the completecirculation of the water in the purifier before it flows over the endwall I) and falls into the boiler proper. The bottom of the purifierinclines away from the feed-pipe, and blow-off pipe D connects with itat its deepest part, so that the deposits may be readily blown off.

I claim as my invention- 1. The combination, with a boiler, of apnrifier made in longitudinal sections adapted to pass through themanhole of the boiler; and means for mounting the purifier in the boilerout of contact with the walls thereof, substantially as specified.

2. The combination, with a boiler, of the purifier B having an inclinedand rounded bottom and made in sections adapted to pass through themanhole of the boiler, said sections being provided with flanges b forassembling theinin position; means for mounting the purifier in theboiler out of contact with the walls thereof and partly submerged in thewater therein; a feed-pipe entering the shallower part of the purifier;and a blow-off entering the deeper part of the purifier, substantiallyas specified.

E. THOMAS HANNAM.

Witnesses:

EVELYN ASH, BRAYTON G. RICHARDS.

The purifier is preferably

